Feature: 1. Dual Mode: 2.4G, BT5.1 dual mode wireless transmission technology, energy saving, built in storage, no password, smart connection. 2. Three Speed DPI: 800‑1200‑1600dpi three speed DPI adjustment design. 15M wireless receiving distance, super anti interference ability. 3. RGB Colorful Luminous Design: Full of sense of science and technology, immersive. Quiet design, quiet and elegant office wireless mouse. 4. Fashionable Slim Design: Slim design, stylish appearance, easy to carry, no noise, plug and play. 5. High Speed Return Chip: Fast cursor positioning and faster data transmission. Specification: Item Type: Wireless Mouse Material: ABS Colour: Black Dpi: 800, 1200, 1600 Battery Type: Built in 500mAh Lithium Battery System Requirements: for Windows 98 / Me / 2000 / XP / Vista / Win 7 / Win8 / 10/Vista OS or the Latest Version. Package List: 1 x Mouse1 x Data Line1 x Receiver1 x Chinese and English User Manual